Neu HC-SR501 Infrarot PIR Bewegungssensor Modul für Arduino Himbeere Pi
1,42 €
It is a HC--SR501 Sensor Module. It has a high value of 3.3 volts and a low of 0 (it is either on or off). The entire sensor with the board is 32mm by 24mm (standard pir motion sensor). Either one will work.
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